Opening Segment:
Mr Burns, who had been celebrating Halloween by watching Mr. Magoo shorts, had grown tired of hunting living species in his mansion and wanted something new. He asked Smithers, after having recently hunted a white sperm whale, "What game should I hunt next?" Smithers said "there is a rusty time machine you could use." Mr Burns said "I just realized something, Smithers I think I will hunt a mammoth." Smithers told him "you need to get in the time machine for that." Mr. Burns said "Oh, of course."

Mr Burns and Smithers, now armed with machine guns, stepped into the time machine and went back in time 45,000 years to a spot near present day Montreal. He saw a entire herd of them and he told Smithers "We can have a whole herd of them on the walls of my mansion." They immediately started firing their guns at the mammoths and the matriarchal herd quickly dropped dead. Before Mr Burns and Smithers could took another step, they both said "I don't feel so good" before they faded into dust due to the fact they had created a time paradox. The dust then read: Treehouse Of Horror XCIX